Biological activity and binding properties of [Ru(II)(dcbpy)2Cl2] complex to bovine serum albumin, phospholipase A2 and glutathione

BioMetals ◽  
2016 ◽  
Vol 29 (5) ◽  
pp. 921-933 ◽  
Author(s):  
Maja Nešić ◽  
Iva Popović ◽  
Andreja Leskovac ◽  
Marijana Petković
Keyword(s):  
Biological Activity ◽  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Phospholipase A2 ◽  
Bovine Serum ◽  
Binding Properties

scholarly journals Adsorption of bovine serum albumin (BSA) by bare magnetite nanoparticles with surface oxidative impurities that prevent aggregation

2019 ◽  
Vol 97 (8) ◽  
pp. 577-583 ◽  
Author(s):  
Somayeh Rahdar ◽  
Abbas Rahdar ◽  
Shahin Ahmadi ◽  
John F. Trant
Keyword(s):  
Biological Activity ◽  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Magnetite Nanoparticles ◽  
Bovine Serum ◽  
Mammalian Cells ◽  
Particle Diameter ◽  
Resistant Bacteria ◽  
Maximum Adsorption Capacity ◽  
Corona Formation

Bare, uncoated magnetite nanoparticles, synthesized using an electrochemical surfactant-free synthesis, have highly oxidized surfaces that prevent aggregation. These particles have demonstrated highly intriguing biological activity showing extremely potent antibiotic activity against both gram-positive and gram-negative bacteria with little toxicity to rats. This difference in activity could be ascribed to the nature of the protein corona. The kinetics and thermodynamics of the binding of bovine serum albumin (BSA), used as a model serum protein, to these magnetite nanoparticles were analyzed. There is no significant change in particle diameter by dynamic light scattering following adsorption, indicating corona formation does not induce aggregation. The maximum adsorption capacity of the particles was determined to be 300 mg of BSA per gram of magnetite. The particles are able to adsorb 90% of the BSA at protein concentrations as high as 500 mg/L. The adsorption is best described using a pseudo second order model and a Langmuir Type III isotherm model. Thermodynamic analysis showed that the process is entropically driven and is spontaneous at all tested temperatures and conditions. However, it appears to be a weak to moderate physical adsorption. This moderate binding affinity could indicate the differential biological activity of these particles towards bacteria and mammalian cells and further support the contention that these are potentially useful new tools for targeting antibiotic-resistant bacteria.

The synthesis and investigation of binding properties of a new water soluble hexadeca zinc(ii) phthalocyanine with bovine serum albumin and DNA

2015 ◽  
Vol 39 (7) ◽  
pp. 5767-5775 ◽  
Author(s):  
Özge Kurt ◽  
İbrahim Özçeşmeci ◽  
B. Şebnem Sesalan ◽  
M. Burkut Koçak
Keyword(s):  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Bovine Serum ◽  
Water Soluble ◽  
Binding Properties

The synthesis and the interaction between water soluble, non-aggregated, hexadeca substituted phthalocyanine zinc(ii) pc with DNA and BSA were reported.

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